<template>
	<view class="">
		<view class="search-box">
			<uni-search-bar @input="input" :radius="100" cancelButton="none"></uni-search-bar>
		</view>
		
		<view class="sugg-list" v-if="searchResults.length !== 0">
			<view class="sugg-item" v-for="(item,i) in searchResults" :key="i" @click="gotoDetail(item.goods_id)">
				<view class="goods-name">
					{{item.goods_name}}
				</view>
				<uni-icons type="arrowright" size="16"></uni-icons>
			</view>
		</view>
		
		<view class="history-box" v-else>
			<view class="history-title">
				<text>搜索历史</text>
				<uni-icons type="trash" size="17" @click="cleanHistory"></uni-icons>
			</view>
			<view class="history-list">
				<uni-tag :text="item" v-for="(item,i) in history" :key="i" @click="gotoGoodsList(item)"></uni-tag>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				timer:null,
				kw:'',
				searchResults:[],
				historyList:['a','app','p']
			};
		},
		methods:{
			input(e) {
				clearTimeout(this.timer)
				this.timer = setTimeout(() => {
					this.kw = e
					this.getSearchList()
				},500)
			},
			async getSearchList() {
				if(this.kw === '') {
					this.searchResults = []
					return
				}
				const { data:res } = await uni.$http.get('/api/public/v1/goods/qsearch',{ query:this.kw })
				if(res.meta.status !== 200)return uni.$showMsg()
				this.searchResults = res.message
				this.saveSearchHistory()
			},
			gotoDetail(goods_id) {
			      uni.navigateTo({
			      	url:'/subpkg/goods_detail/goods_detail?goods_id=' + goods_id
			      })
			},
			saveSearchHistory() {
				// this.historyList.push(this.kw)
				const set = new Set(this.historyList)
				set.delete(this.kw)
				set.add(this.kw)
				this.historyList = Array.from(set)
				
				uni.setStorageSync('kw',JSON.stringify(this.historyList))
			},
			cleanHistory() {
				this.historyList = []
				uni.setStorageSync('kw','[]')
			},
			gotoGoodsList(kw) {
				uni.navigateTo({
					url:'/subpkg/goods_list/goods_list?query=' + kw
				})
			}
		},
		computed:{
			history() {
				return [...this.historyList].reverse()
			}
		},
		onLoad() {
			this.historyList = JSON.parse(uni.getStorageSync('kw') || '[]')
		}
	}
</script>

<style lang="scss">
.search-box {
	position: sticky;
	top: 0;
	z-index: 999;
}
.sugg-list {
	padding: 0 5px;
	
	.sugg-item {
		font-size: 12px;
		padding: 13px 0;
		border-bottom: 1px solid #efefef;
		display: flex;
		align-items: center;
		justify-content: space-between;
		
		.goods-name {
			white-space: nowrap;
			overflow: hidden;
			text-overflow: ellipsis;
			margin-right: 3px;
		}
	}
}

.history-box {
	padding: 0 5px;
	
	.history-title {
		display: flex;
		justify-content: space-between;
		align-items: center;
		height: 40px;
		font-size: 13px;
		border-bottom: 1px solid #efefef;
	}
	
	.history-list {
		display: flex;
		flex-wrap: wrap;
		
		.uni-tag {
			margin-top: 5px;
			margin-right: 5px;
		}
	}
}
</style>
